The subject and the object are a pair of concepts within the philosophical category. Dialectical materialism takes practice as the medium, and holds that subject is the existence of an active objective world, and that...The subject and the object are a pair of concepts within the philosophical category. Dialectical materialism takes practice as the medium, and holds that subject is the existence of an active objective world, and that the object is the object of practical activity. Under certain conditions, the subject and object can In terms of social security, the main body of responsibility is the government that allows the transfer of citizens＇ rights. Thereforethe government is the main body of production and providers of public goods, and the object is the main body＇s guaranteed rights and obligations. Commonly pointed objects or things generally refer to specific material information in practical operations, abstract information economy, legal norms, and the entire practice process.展开更多
Polymer electron acceptors are the key materials in all-polymer solar cells(all-PSCs).In this review,we focused on introducing the principle of boron-nitrogen coordination bond(B←N),and summarizing our recent researc...Polymer electron acceptors are the key materials in all-polymer solar cells(all-PSCs).In this review,we focused on introducing the principle of boron-nitrogen coordination bond(B←N),and summarizing our recent research on polymer electron acceptors containing B←N unit for efficient all-PSC devices.Two approaches have been reported to design polymer electron acceptors using B←N unit.One is to replace a C-C unit by a B←N unit in conjugated polymers to transform a polymer electron donor to a polymer electron acceptor.The other approach is to construct novel electron-deficient building block based on B←N unit for polymer electron acceptors.The polymer electron acceptors containing B←N unit showed tunable lowest unoccupied molecular orbital(LUMO) energy levels and exhibited excellent all-PSC device performance with power conversion efficiency of exceeding6%.These results indicate that organic boron chemistry is a new toolbox to develop functional polymer materials for optoelectronic device applications.展开更多
文摘The subject and the object are a pair of concepts within the philosophical category. Dialectical materialism takes practice as the medium, and holds that subject is the existence of an active objective world, and that the object is the object of practical activity. Under certain conditions, the subject and object can In terms of social security, the main body of responsibility is the government that allows the transfer of citizens＇ rights. Thereforethe government is the main body of production and providers of public goods, and the object is the main body＇s guaranteed rights and obligations. Commonly pointed objects or things generally refer to specific material information in practical operations, abstract information economy, legal norms, and the entire practice process.
基金supported by the National Key Basic Research and Development Program of China(2014CB643504,2015CB655001)the National Natural Science Foundation of China(51373165,21625403,21574129,21404099)+1 种基金the Strategic Priority Research Program of Chinese Academy of Sciences(XDB12010200)the Youth Innovation Promotion Association of the Chinese Academy of Sciences(2017265)
文摘Polymer electron acceptors are the key materials in all-polymer solar cells(all-PSCs).In this review,we focused on introducing the principle of boron-nitrogen coordination bond(B←N),and summarizing our recent research on polymer electron acceptors containing B←N unit for efficient all-PSC devices.Two approaches have been reported to design polymer electron acceptors using B←N unit.One is to replace a C-C unit by a B←N unit in conjugated polymers to transform a polymer electron donor to a polymer electron acceptor.The other approach is to construct novel electron-deficient building block based on B←N unit for polymer electron acceptors.The polymer electron acceptors containing B←N unit showed tunable lowest unoccupied molecular orbital(LUMO) energy levels and exhibited excellent all-PSC device performance with power conversion efficiency of exceeding6%.These results indicate that organic boron chemistry is a new toolbox to develop functional polymer materials for optoelectronic device applications.
